Inkjet-receptive article
An inkjet-receptive article includes a substrate having a coating thereon which is a vinyl lactam polymer or copolymer.
1 . An inkjet-receptive article comprising a substrate having a coating thereon comprising a vinyl lactam polymer or copolymer and a polymer resin diluent coated from a non-aqueous solvent.
2 . An inkjet-receptive article according to claim 1 wherein said vinyl lactam polymer is a polyvinylpyrrolidone polymer or copolymer.
3 . An inkjet-receptive article according to claim 1 wherein said vinyl lactam copolymer is polyvinylpyrrolidone-vinyl acetate.
4 . An inkjet-receptive article according to claim 1 wherein said substrate is a plastic.
5 . An inkjet-receptive article according to claim 4 wherein said substrate is a vinyl, polyester, polyolefin, or paper.
6 . An inkjet-receptive article according to claim 1 which includes a pigment.
7 . An inkjet-receptive article according to claim 1 wherein said pigment is silica or barium sulfate, or mixtures thereof.
8 . An inkjet-receptive article according to claim 7 wherein said pigment is present in an amount of up to 30 wt. % of the coating.
9 . An inkjet-receptive article according to claim 8 wherein said pigment is present in an amount of 5-15 wt. % of the coating.
10 . An inkjet-receptive article according to claim 1 which includes a diluent.
11 . An inkjet-receptive article according to claim 10 wherein said diluent is present in an amount of up to 40 wt. % of the coating.
12 . An article according to claim 11 wherein said diluent is a powdered polymer resin.
13 . An article according to claim 12 wherein said diluent is present in an amount of 5-15 wt. %.
14 . An article according to claim 1 which includes a surfactant.
15 . An article according to claim 14 wherein said surfactant is present in amount of up to 4 wt. % of the coating.
16 . A solvent-based composition for forming an inkjet-receptive coating on a substrate comprising:
(a) a vinyl lactam polymer or copolymer,
(b) a non-aqueous solvent,
(c) optionally a pigment, and
(d) a polymer resin diluent.
17 . A solvent-based composition according to claim 16 which includes a surfactant.
18 . A solvent-based composition according to claim 16 having a % solids of 8-50%.
19 . A solvent-based composition according to claim 16 wherein said % solids is 20-30%.
20 . A solvent-based composition according to claim 16 having a Brookfield viscosity of 50-1500 cPs.
21 . A solvent-based composition according to claim 20 wherein said viscosity is 60-500 cPs.
22 . A solvent-based composition according to claim 14 wherein (a) is a powder or is in a non-aqueous solution.
23 . A solvent-based composition according to claim 16 wherein (b) is methyl ethyl ketone, isopropanol, ethanol, or mixtures thereof.
24 . A solvent-based composition according to claim 16 wherein (c) is silicon dioxide
25 . A solvent-based composition according to claim 16 wherein (c) is a resin or mixtures thereof.
26 . A solvent-based composition according to claim 16 wherein (a) is a polyvinylpyrrolidone polymer or-copolymer.
27 . A solvent-based composition according to claim 26 which is a polyvinylpyrrolidone-vinyl acetate copolymer.